Home / 18,426.76-25,434.38-15,935.64

Finding the Fourth Proportional to 18,426.76, 25,434.38 and 15,935.64

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Solution

The fourth proportional to 18,426.76, 25,434.38 and 15,935.64 is: 21,995.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,426.76 : 25,434.38 = 15,935.64 : x
  2. Step 2: Convert to fraction form
    18,426.76/25,434.38 = 15,935.64/x
  3. Step 3: Cross multiply
    18,426.76x = 25,434.38 × 15,935.64
  4. Step 4: Simplify right side
    18,426.76x = 405,313,123.30
  5. Step 5: Solve for x
    x = 405,313,123.30/18,426.76
  6. Step 6: Final answer
    x = 21,995.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.